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A “business report” could be defined as…

Questions 1-3 are based on the same truth table below.   Which of the following represents the Boolean function in sum-of-minterms (meaning, don’t simplify) form?

For inputs A and B, match each gate to its correct description.

Which of the following is true about Nand2Tetris HDL use for our class?

Which of the following expressions represents an application of De Morgan’s Law?

Which of the following pairs are both universal gates?

To study customer loyalty, three random samples of car sedan owners were taken (Nissan Altima, Honda Accord and Hyundai Sonata), and each owner asked if they would be likely to repurchase the same vehicle in the future (Yes, No). Conduct the appropriate test to determine if the proportions of repurchasing (loyalty) is the same across all sedans. Use a 5% level of significance.

A researcher surveys 200 students and records both their class year (freshman, sophomore, junior, senior) and their preferred study location (library, dorm, coffee shop). The Chi-square test statistic results in a P-value = 0.07. What conclusion can be made at the 5% level of significance?

A 2018 study reported that 19% of U.S. adults supported putting a special tax on junk food, that is things like soda, chips, and candy.  A public health advocate believes that the percentage has increased since then, and collects a random sample of 100 adults and finds that 22 support the special tax. What would be the null and alternative hypotheses used to test the advocate’s claim? 

Which of the following is a condition for conducting a hypothesis test for 1 proportion?